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Synonyms: |
Dicraeia tenax C.H. Wright Ledermanniella tenax (C.H.Wright) C.Cusset |
Common names: | |
Frequency: | |
Status: | Native |
Description: |
Much branched, perennial herb, with slightly fleshy stems, up to 20 cm long; thalloid part ribbon-like, c. 1 mm wide. Leaves mostly scale-like, scattered on stem, densely overlapping on fertile branches, 3-toothed, 0.8–1.5 mm long; scale leaves just below spathella longer and narrower than those on stem. Larger leaves filiform, 2-3 times divided into filiform segments, 3–5 cm long. Flowers 1–several on very short uppermost branches, and 1–2 axillary to branches, subtended by dichotomously branched bracts and bracteoles 1.5–2 mm long, with filiform segments; spathellas ellipsoid to obovoid; pedicel elongating to 8 mm after flowering. Tepals 2, filiform, 0.5 mm long. Stamens with filaments 1.5 mm long, connate for half their length, anthers 1.5 mm long. Ovary ellipsoid, 2 mm long. Fruit an ellipsoid capsule, 1.7–2.5 mm long, 8-ribbed. |
Notes: | |
Derivation of specific name: | tenax: tenacious, strong |
Habitat: | Mat-forming on rocks in fast-flowing water, near water-level with the flowering stems emerging. |
Altitude range: (metres) | Up to 1700 m |
Flowering time: | |
Worldwide distribution: | Angola, DRC, Tanzania, Zambia, Zimbabwe Botswana and Caprivi-Nambibia. |
Zimbabwe distribution: | W,E |
Growth form(s): | |
Endemic status: | |
Red data list status: | |
Insects associated with this species: | |
Spot characters: | Display spot characters for this species |
Images last updated: | Sunday 3 July 2022 |
Literature: |
Chapano, C. & Mamuto, M. (2003). Plants of the Chimanimani District National Herbarium and Botanic Garden, Zimbabwe Page 36. As Ledermanniella sp. Cusset, C. (1997). Podostemaceae Flora Zambesiaca 9(2) Pages 3 - 4. As Ledermanniella tenax (Includes a picture). Mapaura, A. & Timberlake, J. (eds) (2004). A checklist of Zimbabwean vascular plants Southern African Botanical Diversity Network Report No. 33 Sabonet, Pretoria and Harare Page 67. As Ledermanniella tenax Setshogo, M.P. (2005). Preliminary checklist of the plants of Botswana. Sabonet Report no. 37. Sabonet, Pretoria and Gaborone Page 92. As Ledermanniella tenax |
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